【摘要】 本文设计并合成了一系列单加成的树枝状C₆₀衍生物作为电子传输材料,其中,材料的合成过程采用无催化剂参与的Diels-Alder[4+2]环加成反应。得到的超支化C₆₀的溶解性得到明显提高,与原始的C₆₀相比,第一代和第二代树枝状C₆₀衍生物(C₆₀-G1和C₆₀-G2)在有机相中的溶解度均提高了5倍以上。此外,理论模拟和实验均表明,树枝状C₆₀衍生物可作为钙钛矿太阳能电池的电子传输层,并同时具有良好的溶液加工性能。在钙钛矿太阳能电池中,以C₆₀-G2作为电子传输层的最大光电转换效率可达14.7%。更多还原

【Abstract】 A series of shape-persistent polyphenylene dendritic C₆₀ derivatives as the electron transport materials were designed and synthesized via a catalyst-free Diels-Alder [4+2] cycloaddition reaction. These increasing hyperbranched scaffolds could effectively enhance the solubility; notably, both first and second generation dendrimers, C₆₀-G1 and C₆₀-G2, demonstrated more than 5 times higher solubilities than pristine C₆₀. Furthermore, both simulated and experimental data proved their promising solution-processabilities as electron-transporting layers（ETLs） for perovskite solar cells. As a result, the planar p-i-n structural perovskite solar cell could achieve a maximum power conversion efficiency of 14.7 %with C₆₀-G2.更多还原